1 files changed, 41 insertions, 0 deletions
diff --git a/sound/soc/samsung/dmaengine.c b/sound/soc/samsung/dmaengine.c
new file mode 100644
index 000000000..2802789a3
--- /dev/null
+++ b/sound/soc/samsung/dmaengine.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// dmaengine.c - Samsung dmaengine wrapper
+//
+// Author: Mark Brown <broonie@linaro.org>
+// Copyright 2013 Linaro
+
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/soc.h>
+
+#include "dma.h"
+
+int samsung_asoc_dma_platform_register(struct device *dev, dma_filter_fn filter,
+				       const char *tx, const char *rx,
+				       struct device *dma_dev)
+{
+	struct snd_dmaengine_pcm_config *pcm_conf;
+
+	pcm_conf = devm_kzalloc(dev, sizeof(*pcm_conf), GFP_KERNEL);
+	if (!pcm_conf)
+		return -ENOMEM;
+
+	pcm_conf->prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
+	pcm_conf->compat_filter_fn = filter;
+	pcm_conf->dma_dev = dma_dev;
+
+	pcm_conf->chan_names[SNDRV_PCM_STREAM_PLAYBACK] = tx;
+	pcm_conf->chan_names[SNDRV_PCM_STREAM_CAPTURE] = rx;
+
+	return devm_snd_dmaengine_pcm_register(dev, pcm_conf,
+				SND_DMAENGINE_PCM_FLAG_COMPAT);
+}
+EXPORT_SYMBOL_GPL(samsung_asoc_dma_platform_register);
+
+MODULE_AUTHOR("Mark Brown <broonie@linaro.org>");
+MODULE_DESCRIPTION("Samsung dmaengine ASoC driver");
+MODULE_LICENSE("GPL");